Compaq C700 No display
Posted: Mon Feb 29, 2016 5:47 pm
Model : Compaq C700 with GPU
Problem: No display
Observation & Action taken:
1. Tested for voltages all found OK
2. Power consumption around 0.750 amp & No change without & with RAM
3. Tested Capcitor around & on GPU , no capacitor short
4. Replaced CPU & RAM, no use
5. Reflash BIOS, same
6. Tested for short near MCH & found some capacitor showing short near MCH & 2 capacitor showing short on top of MCH
7. got doubt on MCH, but before removing MCH, just lifted one capacitor form MCH top... boom.. all short went.. & display coming fine
Problem: No display
Observation & Action taken:
1. Tested for voltages all found OK
2. Power consumption around 0.750 amp & No change without & with RAM
3. Tested Capcitor around & on GPU , no capacitor short
4. Replaced CPU & RAM, no use
5. Reflash BIOS, same
6. Tested for short near MCH & found some capacitor showing short near MCH & 2 capacitor showing short on top of MCH
7. got doubt on MCH, but before removing MCH, just lifted one capacitor form MCH top... boom.. all short went.. & display coming fine